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vm
说明： Owing to the broad application value of audio
watermarking in remote transmission and mobile
extraction, it is very important to study watermarking
approaches against A/D and D/A conversion. Based
on wavelet decomposition and cepstrum technology,
an audio watermarking algorithm is proposed where
the low-frequency wavelet coefficients are chosen for
cepstrum transforming. Then, the obtained cepstrum
data shows stable for watermark hiding by the
methods of edging data cutting and statistical mean
modification. The synchronization is not required in
the algorithm. Experimental results show that the
proposed algorithm can resist on the attack of A/D
and D/A successfully with features of large capacity
and zero bit error. It will be helpful for the mobile
audio in secure broadcast and management in the
- 2010-02-05 01:56:27下载
- 积分：1
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430-design-schematics
430设计原理图 适用于初学者 本着实验方便而设计各种模块接口(430 design schematics for beginners in line with a variety of experiments designed to facilitate module interface)
- 2013-08-26 10:54:45下载
- 积分：1
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zigbee
这是我们毕业论文的资料，基于zigbee无线网络技术的现代温室环境监测系统研究(This is our thesis, modern greenhouse environment monitoring system based on ZigBee wireless network technology)
- 2013-04-26 10:36:01下载
- 积分：1
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wojieliuliangji
涡街流量计数字信号处理系统的改进与实验
本文针对涡街流量计数字信号处理系统存在的不能测量小流量和易受电磁干扰的问题,对其软硬件方面进行了
改进。重新设计和研制了电荷放大器,提高了灵敏度,增强了适配能力。采取了合理的接地和屏蔽措施,提高了系统的抗干
扰能力。采用去均值和频谱校正的方法,改善了系统的测量精度。编制键盘监控软件,采用状态变量法设计键值分析程序,
实现人机对话功能。进行了液体流量和气体流量的标定实验,结果表明,改进后的数字信号处理系统比常规的流量计信号处
理系统的测量精度高、流程比宽和适配能力强。(Vortex Flowmeter digital signal processing system improvements and experimental
In this paper, vortex flowmeter digital signal processing systems can not exist in measuring small flows and vulnerable to electromagnetic interference problems, its hardware and software aspects of the
Improvement. To re-design and development of the charge amplifier, increasing sensitivity and enhanced adaptive capacity. Adopted a reasonable grounding and shielding measures to improve the system s anti-stem
Interference capability. Used to mean and spectral correction methods to improve the system s measurement accuracy. The preparation of keyboard monitoring software, using state-variable method designed to key analytical procedures,
Functions to achieve human-machine dialogue. Were liquid flow and gas flow calibration experiments, the results show that the improved digital signal processing systems than the conventional flow meter signal at
Management System s high accuracy, process than the w)
- 2010-02-01 08:14:53下载
- 积分：1
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MPU-6000 & MPU-6050
mpu6050，3 轴MEMS 陀螺仪，3 轴MEMS加速度计，整合性6轴运动处理组件电气及引脚说明，供硬件开发工程师参考。(Mpu6050, 3-axis MEMS gyroscope, 3-axis MEMS accelerometer, integrated 6-axis motion processing unit electrical and X, for hardware development engineers reference.)
- 2018-09-11 23:41:52下载
- 积分：1
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考勤管理系统设计方案
这是一个考勤管理系统的设计方案.. 里面含:流程图,ER图,源代码. 欢迎大家来(This is an appraisal management system design .. inside containing : flowchart, ER map, the source code. Welcome everyone to see )
- 2020-06-26 08:40:01下载
- 积分：1
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mes
说明： 化工企业的MES的系统论文，很有指导意义，对有兴趣写作MES论文的朋友有很大的帮助。(Chemical systems MES thesis, it is guiding significance of MES are interested in writing papers of great help to a friend.)
- 2009-08-08 15:07:39下载
- 积分：1
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ABC-AFS
说明： 一种基于ABC-AFS算法的混合入侵检测系统，用于误用和异常检测(A hybrid intrusion detection system based on ABC-AFS algorithm for misuse and anomaly detection)
- 2019-04-05 19:49:09下载
- 积分：1
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color_and_texture_descriptors
Very good article about color and texture descriptions for CBIR.
- 2008-03-31 02:31:15下载
- 积分：1
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Three-phase-Voltage-Source
三相电压型逆变器的建模、设计，IEEE，讲解非常细致深入，非常有帮助！(Three-phase voltage source inverter modeling, design, IEEE, explaining in great detail in depth, very helpful!)
- 2013-06-13 19:42:38下载
- 积分：1
